Kumar Chellapilla David B. Fogel Sathyanarayan S. Rao Gaining Insight into Evolutionary Programming Through Landscape Visualization: An Investigation into IIR Filtering. 407-418 1997 conf/eps/1997 Evolutionary Programming db/conf/eps/ep1997.html#ChellapillaFR97 https://doi.org/10.1007/BFb0014829